Circuit Breaker Racer (CBR) is a Mini-game in Paper Luigi. It shares similarities to the Mario Kart races. There are 4 courses, and 11 racers (one of which is Luigi). You race 5 random opponents, meaning there are 6 players in any one course.
- Supah Racah
- Klank, Krang, and Ruzt
- Luigi and Torque (player)
- Mario (player 2, only in multiplayer mode.)
- Wario (player 3, only in multiplayer mode.)
- Waluigi (only first time in chapter AND player 4 in multiplayer mode.)
- Fawful and Popple (only first time in chapter)
- Petey Piranha Jr.